Dynamic Structural Optimisation by Means of the U.A. Model Updating Technique

In recent years several methods have been developed for updating finite element models with regard to their dynamic characteristics, by means of experimentally obtained vibration information. Many techniques use modal characteristics (resonance frequencies, damping factors, modal displacements, ...) for tuning physical parameters of the model (elasticity moduli, mass density, plate thicknesses, cross sectional characteristics, ...) in order to obtain a finite element model which shows the same dynamic features as the real structure. One of those techniques is the U.A. Model Updating Technique.